(a) A bank or bank and trust company:

1. (1) Shall limit its leeway investments in one corporation to 2.0% of the institution’s capital and surplus at the time of acquisition of the investments.
2. (2) Shall limit its aggregate total of leeway investments to 10% or less of the institution’s capital and surplus at the time of acquisition of the investment.

(b) A savings bank:

1. (1) Shall limit its leeway investments in one corporation to 0.2% of the book value of the assets of the institution at the time of acquisition of the investment.
2. (2) Shall limit its aggregate total of leeway investments to 3.0% of the book value of the assets of the institution at the time of acquisition of the investment.